@import './iconfont.css';
* {
    body {
        .test {
            color: blue;
        }
        .bg_test {
            widows: 600px;
            height: 600px;
            background: url('./1.png') left top no-repeat;
        }
         :local(.className) {
            background: red;
        }
         :local .className {
            color: green;
        }
         :local(.className .subClass) {
            color: green;
        }
         :local .className .subClass :global(.global-class-name) {
            color: blue;
        }
    }
}